% Chapter 5: Figure 5.44, p. 276%%    Ka=30 is currently selected.  You can select Ka=60 and re-run.%Ka=30;t=[0:0.01:1];nc=[Ka*5];dc=[1];ng=[1];dg=[1 20 0];[n,d]=series(nc,dc,ng,dg);[num,den]=cloop(n,d);y=step(num,den,t);plot(t,y), gridxlabel('Time (sec)')ylabel('y(t)')